Asia/Kuching

Time zone identifier: Asia/Kuching

Current civil offset: +08:00 (+08)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1926-02-28

Local Mean Time (LMT): +07:21:20 based on geographic meridian

Total recorded transitions: 18 transitions across 5 distinct offsets

Associated countries: BN, MY

Aliases (Link targets): Asia/Brunei

Historical Offset Step Chart (1880 to Present)

Text summary: Asia/Kuching shifted between 5 distinct offsets from 1926-02-28 through the modern era.

Complete Transition History (18 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1926-02-28T16:38:40Z`	`1926-03-01 00:08:40`	+07:21:20 → +07:30	`+0730`	No	gap
`1932-12-31T16:30:00Z`	`1933-01-01 00:30:00`	+07:30 → +08:00	`+08`	No	gap
`1935-09-13T16:00:00Z`	`1935-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1935-12-13T15:40:00Z`	`1935-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1936-09-13T16:00:00Z`	`1936-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1936-12-13T15:40:00Z`	`1936-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1937-09-13T16:00:00Z`	`1937-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1937-12-13T15:40:00Z`	`1937-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1938-09-13T16:00:00Z`	`1938-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1938-12-13T15:40:00Z`	`1938-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1939-09-13T16:00:00Z`	`1939-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1939-12-13T15:40:00Z`	`1939-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1940-09-13T16:00:00Z`	`1940-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1940-12-13T15:40:00Z`	`1940-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1941-09-13T16:00:00Z`	`1941-09-14 00:20:00`	+08:00 → +08:20	`+0820`	Yes	gap
`1941-12-13T15:40:00Z`	`1941-12-13 23:40:00`	+08:20 → +08:00	`+08`	No	overlap
`1942-02-15T16:00:00Z`	`1942-02-16 01:00:00`	+08:00 → +09:00	`+09`	No	gap
`1945-09-11T15:00:00Z`	`1945-09-11 23:00:00`	+09:00 → +08:00	`+08`	No	overlap

Notes from the Maintainers

Source: asia (Lines 2809 to 2816)

For peninsular Malaysia see Asia/Singapore.

Sabah & Sarawak
From Paul Eggert (2014-08-12):
The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
and 1982 transition dates are from Mok Ly Yng.
Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

Attributed Statements:

Paul Eggert (2014-08-12):

The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982 transition dates are from Mok Ly Yng. Zone NAME STDOFF RULES FORMAT [UNTIL]

Years on Record

Methodology Note: The 1970 Rule

tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.